<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<style type="text/css">
			.nav{
				height: 100px;
				width: 800px;
				margin: 0 auto;
				background: #D9D9D9;
			}
			.nav ul{
				list-style: none;
				margin: 0 auto;
			}
			.nav ul li{
				float: left;
				width: 100px;
				text-align: center;
				margin-top: 50px;
			}
			.nav ul li:hover{
				background: #008000;
			}
		</style>
	</head>
	<body>
		<div class="top">
			<div class="nav">
				<ul>
					<li>首页</li>
					<li>日志</li>
					<li>留言板</li>
					<li>相册</li>
					<li>关于我</li>
				</ul>
			</div>
		</div>
	</body>
</html>
